Restaurant Impairment, Closure Costs and Asset Disposals Restaurant Impairment, Closure Costs and Asset Disposals (Details) $ in Thousands	3 Months Ended
	Apr. 03, 2018 USD ($) restaurant	Apr. 04, 2017 USD ($) restaurant
Property, Plant and Equipment Impairment or Disposal [Abstract]
Restaurant impairments	$ 598	$ 1,935
Closure costs	554	19,886
Loss on disposal of assets and other	428	233
Asset Disposals, Closure Costs and Restaurant Impairments	$ 1,580	$ 22,054
Number of restaurants impaired during the comparable periods | restaurant	1	4
Number of restaurants closed | restaurant		55
Impairment closure costs and other	$ 600	$ 19,900